CN106147793B - Liquid-crystal composition and liquid crystal display device - Google Patents

Liquid-crystal composition and liquid crystal display device Download PDF

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Publication number
CN106147793B
CN106147793B CN201510197266.4A CN201510197266A CN106147793B CN 106147793 B CN106147793 B CN 106147793B CN 201510197266 A CN201510197266 A CN 201510197266A CN 106147793 B CN106147793 B CN 106147793B
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liquid
crystal composition
compound
gross weight
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CN106147793A (en
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戴慧娟
韩文明
丁文全
李鹏飞
徐海彬
贺笛
刘云云
姚利芳
马文阳
马定福
张鹤鸣
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Jiangsu Hecheng Display Technology Co Ltd
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Jiangsu Hecheng Display Technology Co Ltd
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Priority to CN201510197266.4A priority Critical patent/CN106147793B/en
Priority to TW105112125A priority patent/TWI621698B/en
Priority to PCT/CN2016/079939 priority patent/WO2016169498A1/en
Priority to US15/568,611 priority patent/US10457869B2/en
Priority to KR1020177021752A priority patent/KR102092650B1/en
Priority to JP2017550695A priority patent/JP6581206B2/en
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • C09K2019/0466—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the linking chain being a -CF2O- chain
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    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
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    • C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
    • C09K2019/3422—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a six-membered ring
    • G—PHYSICS
    • G02—OPTICS
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells

Abstract

The present invention provides a kind of liquid-crystal composition, comprising：The compound of formula I is as the first component；The compound of formula II 1 and/or formula II 2 is as the second component；The compound of general formula III is as third component；The compound of general formulae IV is as the 4th component；The compound of formula V is as BSA；And the compound of formula VI is as the 6th component.The liquid-crystal composition of the present invention has at least one of the characteristics such as big dielectric anisotropy, big optical anisotropy, high voltage retention and low threshold voltage characteristic, suitable for liquid crystal display device.The present invention also provides the liquid crystal display device for including the liquid-crystal composition.

Description

Liquid-crystal composition and liquid crystal display device
Technical field
It is more particularly to a kind of that there is larger optical anisotropy, larger Jie the present invention relates to a kind of liquid-crystal composition Electrical anisotropy, suitable clearing point and the liquid-crystal composition compared with low viscosity, and include the liquid crystal of the liquid-crystal composition Show device.
Background technology
For liquid crystal display cells, PC (phase change, phase transformation), TN are divided into according to the display pattern of liquid crystal (twist nematic, twisted-nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically conerolled birefringence), OCB (optically compensated It is bend, optical compensation curved), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, hang down Straight orientation) etc. type.PM (passive matrix, passive-matrix) types and AM (active are divided into according to the type of drive of element Matrix, active-matrix) type.PM points are the static state type such as (static) and multichannel (multiplex).AM points are TFT (thin Film transistor, thin film transistor (TFT)), the class such as MIM (metal insulator metal, metal-insulator-metal) Type.TFT type has non-crystalline silicon (amorphous silicon) and polysilicon (polycrystal silicon).The latter according to Manufacturing process is divided into high temperature modification and low form.Liquid crystal display cells according to the type of light source be divided into the reflection-type using natural light, Infiltration type using backlight and the semi-transmission type using two kinds of light sources of natural light and backlight.
The general characteristic of the composition of table 1. and AM elements
NO. The general characteristic of composition The general characteristic of AM elements
1 Nematic wide temperature range Workable wide temperature range
2 Viscosity is small Response time is short
3 Optical anisotropy is appropriate Contrast is big
4 Positive or negative property dielectric constant anisotropy is big Critical voltage is low, and consumption electric power is small, and contrast is big
5 Resistivity is big Voltage retention is big, and contrast is big
6 To ultraviolet and thermostabilization Long lifespan
Liquid crystal material is needed with appropriate high dielectric anisotropy, optical anisotropy and good low temperature intersolubility And heat endurance.In addition, liquid crystal material should also have low viscosity and short response time, low threshold voltage and high-contrast.Root The each to performance indications of composition is further illustrated according to commercially available liquid crystal display cells.Nematic temperature range and element Operating temperature range is associated.Nematic ceiling temperature is preferably more than or equal to 70 DEG C, and nematic lower limit temperature Preferably less than it is equal to -10 DEG C.The viscosity of composition is associated with the response time of element.It is dynamic in order to show in the component Draw, the response time of preferably element is short.Therefore, the viscosity of preferably composition is small, and group when preferably temperature is low The viscosity of compound is small.
The optical anisotropy of composition is associated with the contrast of element.In order that the contrast ratio of liquid crystal display cells Maximize, can be by optical anisotropy (Δ n) and the thickness (d) of liquid crystal layer product value (Δ n*d) setting of liquid-crystal composition It is designed for the mode of fixed value.Appropriate product value depends on the species of operating mode.Such as the appropriate value of the element of TN patterns About 0.45 μm.During the situation, for the less element of thickness of liquid crystal layer, the preferably big combination of optical anisotropy Thing.
Liquid crystal display cells containing compared with large optical anisotropic liquid-crystal composition can increase contrast.
The liquid crystal display cells of the big liquid-crystal composition of absolute value containing dielectric anisotropy can reduce basic voltage Value, driving voltage is reduced, and can further reduce consumption of electric power.The absolute value of dielectric anisotropy exists anti-with driving voltage The relation of ratio.The liquid crystal display cells of the low liquid-crystal composition of driving voltage value can effectively reduce the power consumption of display, particularly There is longer cruising time in portable type electronic products such as running stores, such as mobile phone, tablet personal computers.
The liquid crystal display cells of liquid-crystal composition containing higher voltage retention can reduce liquid crystal display cells and go out The risk of existing image retention, extends liquid crystal display cells service life.
Single liquid-crystal compounds is generally difficult to play its characteristic, and generally it is mixed with other plurality of liquid crystals compounds and is matched somebody with somebody Composition is made.Although liquid-crystal composition of the prior art can obtain preferably characteristic, these liquid-crystal composition (examples Liquid-crystal composition as disclosed in CN101796162A, CN1475547A) there are following shortcomings to varying degrees：Optics is each Anisotropy is not big enough, dielectric anisotropy is relatively low, clearing point is relatively low, viscosity is higher, voltage retention is low, directly results in and uses this The liquid crystal cell generation contrast of liquid-crystal compositions is low a bit, the defects of image retention, consumption power is big easily occurs..
Therefore, it is necessary to a kind of liquid-crystal composition, it has big optical anisotropy, big dielectric anisotropy, low Threshold voltage, high voltage retention have liquid crystal display cells higher at least one of the characteristic spy such as to display contrast Property.
The content of the invention
There is big dielectric anisotropy, big optical anisotropy, high voltage it is an object of the invention to provide a kind of The liquid-crystal composition of the characteristic such as conservation rate and low threshold voltage.
Other purposes of the present invention are to provide a kind of liquid crystal display cells, and it is included with big dielectric anisotropy, greatly The characteristic such as optical anisotropy, high voltage retention and low threshold voltage composition so that liquid crystal display cells With high-contrast and superior power saving performance.
In order to realize foregoing invention purpose, of the invention provides a kind of liquid-crystal composition, and the liquid-crystal composition includes：
The first component of the liquid-crystal composition gross weight 5-30% is accounted for, first component is one or more formulas I Compound
The second component of the liquid-crystal composition gross weight 5-25% is accounted for, second component is one or more formulas II -1 and/or the compound of formula II -2
The third component of the liquid-crystal composition gross weight 1-15% is accounted for, the third component is one or more general formula IIIs Compound
The 4th component of the liquid-crystal composition gross weight 5-50% is accounted for, the 4th component is one or more general formulae IVs Compound
The BSA of the liquid-crystal composition gross weight 5-45% is accounted for, the BSA is one or more formulas V Compound
The 6th component of the liquid-crystal composition gross weight 1-50% is accounted for, the 6th component is one or more formulas VI Compound
Wherein,
R1、R2、R3、R4、R6、R7And R8It is identical or different, independently of one another represent carbon number be 1-7 fluoro or not by The alkyl of fluoro, the fluoro that carbon number is 1-7 or not by the alkoxy of fluoro, or fluoro that carbon number is 2-7 or not by The alkenyl of fluoro；
R5Fluoro that expression-H, carbon number are 1-7 or the fluoro or not for being not 1-7 by the alkyl of fluoro, carbon number By the alkoxy of fluoro, or carbon number for 2-7 fluoro or not by the alkenyl of fluoro；
Represent It is describedUpper one or more H can be substituted by F；
RingRingRingRingAnd ringIt is identical Or it is different, represent independently of one another
RingRingRingAnd ringIt is identical or different, each solely On the spot represent
L1And L2It is identical or different, expression-H or-F independently of one another；
Z1And Z2It is identical or different, singly-bound ,-COO- ,-CH are represented independently of one another2CH2- or-CH2O-；
Z3And Z4It is identical or different, singly-bound ,-COO- or-CH are represented independently of one another2O-；
A represents 0,1 or 2, and when a is 2, ringCan be with identical, can also be different；
B, d and e are identical or different, each independent expression 0 or 1；
Wherein, as d=e=0, d=1 and e=0 or d=0 and e=1, ringAnd ringNo It is simultaneously
In certain embodiments of the present invention, it is preferable that first component accounts for the liquid-crystal composition gross weight 5-15%；Second component accounts for the 10-20% of the liquid-crystal composition gross weight；The third component accounts for the liquid crystal combination The 1-10% of thing gross weight；4th component accounts for the 10-45% of the liquid-crystal composition gross weight；The BSA accounts for institute State the 5-35% of liquid-crystal composition gross weight；And the 6th component accounts for the 1-50% of the liquid-crystal composition gross weight.
In some embodiments of the present invention, it is preferable that the compound of the formula II -1 accounts for the liquid-crystal composition The 6-18% of gross weight.
In some embodiments of the present invention, it is preferable that the compound of the formula II -2 accounts for the liquid-crystal composition The 0-6% of gross weight.
In some embodiments of the present invention, R1Represent the alkyl that carbon number is 1-5.
In some embodiments of the present invention, R2Represent the alkyl that carbon number is 1-5 or the alkane that carbon number is 2-4 Epoxide.
In some embodiments of the present invention, R2Represent the alkyl that carbon number is 1-5.
In some embodiments of the present invention, R3Represent the alkyl that carbon number is 1-5；And in some of the present invention In embodiment, R4Represent the alkyl that carbon number is 1-5 or the alkenyl that carbon number is 2-5.
In some embodiments of the present invention, R4Represent the alkyl that carbon number is 1-5.
In some embodiments of the present invention, R4Represent the alkenyl that carbon number is 4.
In some embodiments of the present invention, R4Expression carbon number is 3- cyclobutenyls.
In some embodiments of the present invention, R5Expression-H or the alkyl that carbon number is 1-5.RingRepresentRingAnd ringIt is identical or not Together, represent independently of one anotherA represents 0 or 1.
In some embodiments of the present invention, R5Expression-H or the alkyl that carbon number is 2-5.
In some embodiments of the present invention, ringRepresentWhen, R5Expression-H.
In some embodiments of the present invention, ringRepresent RingRepresent
In some embodiments of the present invention, R6Represent the alkyl that carbon number is 1-5.RingAnd ringRepresent independently of one anotherRingRepresent B represents 0 or 1.Z2Represent singly-bound.
In some embodiments of the present invention, R6Represent the alkyl that carbon number is 2-5.
In some embodiments of the present invention, R6Represent the alkyl that carbon number is 2-4.
In some embodiments of the present invention, R7Represent the alkyl that carbon number is 1-5.R8Expression carbon number is 1-5 Alkyl, carbon number be 1-3 fluoro alkoxy, or carbon number be 2-5 alkenyl.RingRepresentRingRingAnd ringIt is identical or different, represent independently of one anotherZ3And Z4Represent singly-bound.D and e are identical or different, each independent expression 0 or 1, premise 1 is represented when being d with e differences.
In some embodiments of the present invention, R7Represent the alkyl that carbon number is 3-5.R8Expression carbon number is 2-3 Alkyl ,-OCF3Or the alkenyl that carbon number is 2-3.
In some embodiments of the present invention, R7Represent the alkyl that carbon number is 3-4.R8It is 2 to represent carbon number Alkyl.
In some embodiments of the present invention, R7Represent the alkyl that carbon number is 3.R8Represent vinyl or acrylic.
In some embodiments of the present invention, it is preferable that the compound of the formula I is selected from and is made up of following compounds Group：
In some embodiments of the present invention, it is preferable that the compound of the formula II -1 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula II -2 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formula III is selected from by following compounds group Into group：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV is selected from by following compounds group Into group：
Wherein,
R5Represent the carbon number fluoro for being 1-7 or be not 1-7 by the alkyl of fluoro, carbon number fluoro or not by fluorine The alkoxy in generation.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -1 accounts for the liquid-crystal composition The 0-30% of gross weight；As optimal technical scheme, the compound of the general formulae IV -1 accounts for the liquid-crystal composition gross weight 20-30%.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -5 accounts for the liquid-crystal composition The 0-20% of gross weight；As optimal technical scheme, the compound of the general formulae IV -5 accounts for the liquid-crystal composition gross weight 10-20%.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -6 accounts for the liquid-crystal composition The 0-15% of gross weight.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -8 accounts for the liquid-crystal composition The 0-20% of gross weight；As optimal technical scheme, the compound of the general formulae IV -8 accounts for the liquid-crystal composition gross weight 10-15%.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -9 accounts for the liquid-crystal composition The 0-25% of gross weight；As optimal technical scheme, the compound of the general formulae IV -9 accounts for the liquid-crystal composition gross weight 2-15%.
In certain embodiments of the present invention, it is preferable that the compound of the general formulae IV -10 accounts for the liquid-crystal composition The 0-15% of gross weight.
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -1 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -2 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -3 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -4 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -5 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -6 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -7 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -8 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -9 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -10 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the general formulae IV -11 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V is selected from by following compounds group Into group：
Wherein,
R6Represent the carbon number fluoro for being 1-5 or be not 1-5 by the alkyl of fluoro, carbon number fluoro or not by fluorine The alkoxy in generation, or carbon number is for 2-5 fluoro or not by the alkenyl of fluoro.
In some embodiments of the present invention, it is preferable that the compound of the formula V -3 accounts for the liquid-crystal composition The 0-10% of gross weight.
In some embodiments of the present invention, it is preferable that the compound of the formula V -4 accounts for the liquid-crystal composition The 0-10% of gross weight.
In some embodiments of the present invention, it is preferable that the compound of the formula V -5 accounts for the liquid-crystal composition The 0-15% of gross weight；As optimal technical scheme, the compound of the formula V -5 accounts for the liquid-crystal composition gross weight 5-11%.
In some embodiments of the present invention, it is preferable that the compound of the formula V -6 accounts for the liquid-crystal composition The 0-15% of gross weight；As optimal technical scheme, the compound of the formula V -6 accounts for the liquid-crystal composition gross weight 4-11%.
In some embodiments of the present invention, it is preferable that the compound of the formula V -7 accounts for the liquid-crystal composition The 0-10% of gross weight.
In some embodiments of the present invention, it is preferable that the compound of the formula V -10 accounts for the liquid-crystal composition The 0-25% of gross weight；As optimal technical scheme, the compound of the formula V -10 accounts for the liquid-crystal composition gross weight 10-22%.
In some embodiments of the present invention, it is preferable that the compound of the formula V -1 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -2 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -3 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -4 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -5 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -6 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -7 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -8 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -9 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -10 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -11 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -12 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula V -13 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI is selected from by following compounds group Into group：
Wherein,
R7And R8It is identical or different, the alcoxyl that alkyl, carbon number that carbon number is 1-5 are 1-5 is represented independently of one another The alkenyloxy group that the alkenyl or carbon number that base, carbon number are 2-5 are 2-5.
In some embodiments of the present invention, it is preferable that the compound of the formula VI -1 accounts for the liquid-crystal composition The 3-47% of gross weight, preferably, the compound of the formula VI -1 account for the 6- of the liquid-crystal composition gross weight 37%.
In some embodiments of the present invention, it is preferable that the compound of the formula VI -4 accounts for the liquid-crystal composition The 0-10% of gross weight, preferably, the compound of the formula VI -4 account for the 1- of the liquid-crystal composition gross weight 5%.
In some embodiments of the present invention, it is preferable that the compound of the formula VI -7 accounts for the liquid-crystal composition The 0-10% of gross weight, preferably, the compound of the formula VI -7 account for the 5- of the liquid-crystal composition gross weight 10%.
In some embodiments of the present invention, it is preferable that the compound of the formula VI -1 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -2 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -3 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -4 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -5 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -6 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -7 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -8 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -9 is selected from by following compounds The group of composition：
In some embodiments of the present invention, it is preferable that the compound of the formula VI -10 is selected from by following compounds The group of composition：
Another aspect of the present invention provides a kind of liquid crystal display device, and the liquid crystal display device includes the liquid of the present invention Crystal composite.
Inventor has found that liquid-crystal composition of the present invention has relatively low viscosity, and AM display elements, pursuit It is fast-response, there is faster response speed compared with the liquid-crystal composition of low viscosity, so that including the liquid-crystal composition AM display elements also have faster response speed, meanwhile, AM component requirements have low critical voltage, low power consumption, this hair The bright liquid-crystal composition has larger dielectric anisotropy, relatively low driving voltage, meets the development of AM element low-power consumption Need, in addition, quality of the AM elements to liquid crystal, and monomer in liquid-crystal composition has very high requirement, the structure of monomer molecule It can not be decomposed under the mal-conditions such as high temperature, UV, quality decline, this hair can not occur under high temperature, UV for liquid-crystal composition Used monomer structure stable in the bright liquid-crystal composition, monomer best in quality so that the liquid-crystal composition have compared with High voltage retention, there is the risk of image retention so as to reduce the liquid crystal display cells for including the liquid-crystal composition, prolong Long liquid crystal display cells service life.
In the present invention unless otherwise specified, described ratio is weight ratio, and all temperature are degree celsius temperature, institute The box thickness that the test for the response time data stated is selected is 7 μm.
Embodiment
Illustrate the present invention below with reference to specific embodiment.It should be noted that the following examples are the present invention Example, be only used for illustrating the present invention, and be not limited to the present invention.In the case of without departing from present subject matter or scope, Other combinations and the various improvement in present inventive concept can be carried out.
For ease of expressing, in following embodiment, the unit structure of liquid-crystal composition is represented with the code listed by table 2：
The group structure code of the liquid-crystal compounds of table 2
By taking the compound of following structural formula as an example：
The structural formula then can be expressed as represented by code listed in Table 1：NCGUF, the n in code represent left end alkyl Carbon number, such as n are " 2 ", that is, it is-C to represent the alkyl2H5；C in code represents " cyclohexyl ", and the G in code is represented " the fluoro- Isosorbide-5-Nitrae-phenylenes of 2- ", the U in code represent " 2,5- bis- fluoro- Isosorbide-5-Nitrae-phenylene ", and the F in code represents " fluoro substituents ".
In following examples test event to write a Chinese character in simplified form code name as follows：
Δn：Optical anisotropy (589nm, 25 DEG C)
Δε：Dielectric anisotropy (1KHz, 25 DEG C)
Cp：Clearing point (nematic-isotropic phase transition temperature, DEG C)
Vth：Threshold voltage (1KHZ, 25 DEG C, TN90)
η：Kinematic viscosity (mm2·s-1, 25 DEG C, unless otherwise indicated)
VHR (initial) initial voltage conservation rates (%)
Wherein, optical anisotropy using abbe's refractometer under sodium lamp (589nm) light source, 25 DEG C test；Dielectric Testing cassete is TN90 types, and box is thick 7 μm.
VHR (initial) is obtained using TOY06254 type liquid crystal evaluation of physical property system testings；Pulse voltage：5V 6HZ, test Temperature is 60 DEG C, and the measuring unit cycle is 166.7ms；
Vth test conditions：C/1KHZ, JTSB7.0.
It used each composition below in an example, can be synthesized, or be passed through by known method Commercial sources obtain.These synthetic technologys are conventional, and resulting each liquid-crystal compounds meets electrical type compound mark after tested It is accurate.
According to the proportioning of each liquid-crystal composition as defined in following examples, liquid-crystal composition is prepared.The liquid-crystal composition Preparation be to be carried out according to the conventional method of this area, such as take heating, ultrasonic wave, suspend mode mixed according to regulation ratio Close and be made.
Prepare and study the liquid-crystal composition provided in the following example.Be shown below each liquid-crystal composition composition and Its performance parameter test result.
Comparative example 1
The liquid-crystal composition of comparative example 1 is configured to by each compound and percetage by weight listed in table 3, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 3 and its test performance
Comparative example 2
The liquid-crystal composition of comparative example 2 is configured to by each compound and percetage by weight listed in table 4, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 4 and its test performance
Comparative example 3
The liquid-crystal composition of comparative example 3 is configured to by each compound and percetage by weight listed in table 5, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 5 and its test performance
Embodiment 1
The liquid-crystal composition of embodiment 1 is configured to by each compound and percetage by weight listed in table 6, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 6 and its test performance
Embodiment 2
The liquid-crystal composition of embodiment 2 is configured to by each compound and percetage by weight listed in table 7, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 7 and its test performance
Embodiment 3
The liquid-crystal composition of embodiment 3 is configured to by each compound and percetage by weight listed in table 8, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 8 and its test performance
Embodiment 4
The liquid-crystal composition of embodiment 4 is configured to by each compound and percetage by weight listed in table 9, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 9 and its test performance
Embodiment 5
The liquid-crystal composition of embodiment 5 is configured to by each compound and percetage by weight listed in table 10, it is filled in Performance test is carried out between liquid crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 10 and its test performance
Embodiment 6
The liquid-crystal composition of embodiment 6 is configured to by each compound and percetage by weight listed in table 11, it is filled in Performance test is carried out between liquid crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 11 and its test performance
Embodiment 7
The liquid-crystal composition of embodiment 7 is configured to by each compound and percetage by weight listed in table 12, it is filled in Performance test is carried out between liquid crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 12 and its test performance
Embodiment 8
The liquid-crystal composition of embodiment 8 is configured to by each compound and percetage by weight listed in table 13, it is filled in Performance test is carried out between liquid crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula of table 13 and its test performance
With reference to comparative example 1,2 and 3, from the test data of above example 1,2,3,4,5,6,7 and 8, institute of the present invention There is provided liquid-crystal composition has larger dielectric anisotropy, larger optical anisotropy and low threshold voltage, is applicable In liquid crystal display device.And compared with reference examples 1,2 and 3, liquid-crystal composition provided by the present invention has more excellent Optical anisotropy and dielectric anisotropy, and the suitable clearing point of most liquid crystal display requirements is disclosure satisfy that, It disclosure satisfy that the high-contrast of liquid crystal display and the demand of superior power saving performance.

Claims (14)

1. a kind of liquid-crystal composition, comprising：
The first component of the liquid-crystal composition gross weight 5-30% is accounted for, first component is the change of one or more formulas I Compound
The second component of the liquid-crystal composition gross weight 5-25% is accounted for, second component is one or more formulas II -1 And/or the compound of formula II -2
The third component of the liquid-crystal composition gross weight 1-15% is accounted for, the third component is the change of one or more general formula IIIs Compound
The 4th component of the liquid-crystal composition gross weight 5-50% is accounted for, the 4th component is the change of one or more general formulae IVs Compound
The BSA of the liquid-crystal composition gross weight 5-45% is accounted for, the BSA is the change of one or more formulas V Compound
The 6th component of the liquid-crystal composition gross weight 1-50% is accounted for, the 6th component is the change of one or more formulas VI Compound
Wherein,
R1、R2、R3、R4、R6、R7And R8It is identical or different, represent carbon number for 1-7 fluoro or not by fluoro independently of one another Alkyl, the fluoro that carbon number is 1-7 or not by the alkoxy of fluoro, or fluoro that carbon number is 2-7 or not by fluoro Alkenyl；
R5Fluoro that expression-H, carbon number are 1-7 or be not 1-7 by the alkyl of fluoro, carbon number fluoro or not by fluoro Alkoxy, carbon number be 2-7 fluoro or not by the alkenyl of fluoro；
Represent It is describedUpper one or more H can be substituted by F；
RingRingRingRingAnd ringIt is identical or not Together, represent independently of one another
RingRingRingAnd ringIt is identical or different, independently of one another Represent
L1And L2It is identical or different, expression-H or-F independently of one another；
Z1And Z2It is identical or different, singly-bound ,-COO- ,-CH are represented independently of one another2CH2- or-CH2O-；
Z3And Z4It is identical or different, singly-bound ,-COO- or-CH are represented independently of one another2O-；
A represents 0,1 or 2, and when a is 2, ringCan be with identical, can also be different；
B, d and e are identical or different, each independent expression 0 or 1；
Wherein, as d=e=0, d=1 and e=0 or d=0 and e=1, ringAnd ringWhen different For
2. liquid-crystal composition according to claim 1, it is characterised in that the compound of the formula I is selected from by followingization The group of compound composition：
3. liquid-crystal composition according to claim 1, it is characterised in that the compound of the formula II -1 is selected from by following Compound group into group：
4. liquid-crystal composition according to claim 1, it is characterised in that the compound of the formula II -2 is selected from by following Compound group into group：
5. liquid-crystal composition according to claim 1, it is characterised in that the compound of the general formula III is selected from by followingization The group of compound composition：
6. liquid-crystal composition according to claim 1, it is characterised in that the compound of the general formulae IV is selected from by followingization The group of compound composition：
Wherein,
R5Represent the carbon number fluoro for being 1-7 or be not 1-7 by the alkyl of fluoro, carbon number fluoro or not by fluoro Alkoxy.
7. liquid-crystal composition according to claim 6, it is characterised in that the compound of the general formulae IV -1 is selected from by following Compound group into group：
The compound of the general formulae IV -2 is selected from the group being made up of following compounds：
The compound of the general formulae IV -3 is selected from the group being made up of following compounds：
The compound of the general formulae IV -4 is selected from the group being made up of following compounds：
The compound of the general formulae IV -5 is selected from the group being made up of following compounds：
The compound of the general formulae IV -6 is selected from the group being made up of following compounds：
The compound of the general formulae IV -7 is selected from the group being made up of following compounds：
The compound of the general formulae IV -8 is selected from the group being made up of following compounds：
The compound of the general formulae IV -9 is selected from the group being made up of following compounds：
The compound of the general formulae IV -10 is selected from the group being made up of following compounds：
The compound of the general formulae IV -11 is selected from the group being made up of following compounds：
8. liquid-crystal composition according to claim 1, it is characterised in that the compound of the formula V is selected from by followingization The group of compound composition：
Wherein,
R6Represent the carbon number fluoro for being 1-5 or be not 1-5 by the alkyl of fluoro, carbon number fluoro or not by fluoro Alkoxy, or carbon number is for 2-5 fluoro or not by the alkenyl of fluoro.
9. liquid-crystal composition according to claim 8, it is characterised in that the compound of the formula V -1 is selected from by following Compound group into group：
The compound of the formula V -2 is selected from the group being made up of following compounds：
The compound of the formula V -3 is selected from the group being made up of following compounds：
The compound of the formula V -4 is selected from the group being made up of following compounds：
The compound of the formula V -5 is selected from the group being made up of following compounds：
The compound of the formula V -6 is selected from the group being made up of following compounds：
The compound of the formula V -7 is selected from the group being made up of following compounds：
The compound of the formula V -8 is selected from the group being made up of following compounds：
The compound of the formula V -9 is selected from the group being made up of following compounds：
The compound of the formula V -10 is selected from the group being made up of following compounds：
The compound of the formula V -11 is selected from the group being made up of following compounds：
The compound of the formula V -12 is selected from the group being made up of following compounds：
The compound of the formula V -13 is selected from the group being made up of following compounds：
10. liquid-crystal composition according to claim 1, it is characterised in that the compound of the formula VI is selected from by following Compound group into group：
Wherein,
R7And R8It is identical or different, independently of one another represent carbon number be 1-5 alkyl, carbon number be 1-5 alkoxy, The alkenyloxy group that the alkenyl or carbon number that carbon number is 2-5 are 2-5.
11. liquid-crystal composition according to claim 10, it is characterised in that the compound of the formula VI -1 is selected under Row compound group into group：
The compound of the formula VI -2 is selected from the group being made up of following compounds：
The compound of the formula VI -3 is selected from the group being made up of following compounds：
The compound of the formula VI -4 is selected from the group being made up of following compounds：
The compound of the formula VI -5 is selected from the group being made up of following compounds：
The compound of the formula VI -6 is selected from the group being made up of following compounds：
The compound of the formula VI -7 is selected from the group being made up of following compounds：
The compound of the formula VI -8 is selected from the group being made up of following compounds：
The compound of the formula VI -9 is selected from the group being made up of following compounds：
The compound of the formula VI -10 is selected from the group being made up of following compounds：
12. according to the liquid-crystal composition any one of claim 1-11, it is characterised in that first component accounts for described The 5-15% of liquid-crystal composition gross weight；Second component accounts for the 10-20% of the liquid-crystal composition gross weight；Described 3rd Component accounts for the 1-10% of the liquid-crystal composition gross weight；4th component accounts for the 10- of the liquid-crystal composition gross weight 45%；The BSA accounts for the 5-35% of the liquid-crystal composition gross weight；And the 6th component accounts for the liquid crystal group The 1-50% of compound gross weight.
13. liquid-crystal composition according to claim 12, it is characterised in that the liquid-crystal composition includes：
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 3%；
Account for the chemical compounds I -3 of the liquid-crystal composition gross weight 5%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 3%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 5%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -2-2 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-2 of the liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ -8-2 of the liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ -8-3 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -8-4 of the liquid-crystal composition gross weight 6%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 6-4 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 4-6 of compound VI of the liquid-crystal composition gross weight 2%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 27%；
Account for-the 1-15 of compound VI of the liquid-crystal composition gross weight 10%；And
Compound III -5 of the liquid-crystal composition gross weight 6% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -3 of the liquid-crystal composition gross weight 4%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 4%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 3%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-5 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -1-1 of the liquid-crystal composition gross weight 9%；
Account for the compounds Ⅳ -1-2 of the liquid-crystal composition gross weight 12%；
Account for the compounds Ⅳ -5-2 of the liquid-crystal composition gross weight 20%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 11%；
Account for-the 5-2 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 10-1 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 10-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 10-3 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 3%；And
Compound III -5 of the liquid-crystal composition gross weight 7% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 4%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 5%；
Account for the compound ii -1-2 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-1 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-2 of the liquid-crystal composition gross weight 5%；
Account for-the 5-1 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 5-2 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 10-1 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 10-2 of compound V of the liquid-crystal composition gross weight 10%；
Account for-the 10-3 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 7-2 of compound VI of the liquid-crystal composition gross weight 8%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 18%；And
Compound III -5 of the liquid-crystal composition gross weight 3% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 3%；
Account for the chemical compounds I -3 of the liquid-crystal composition gross weight 5%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 5%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -2-2 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -9-2 of the liquid-crystal composition gross weight 2%；
Account for the compounds Ⅳ -10-2 of the liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ -10-3 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -10-4 of the liquid-crystal composition gross weight 5%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 6-3 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 4-6 of compound VI of the liquid-crystal composition gross weight 2%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 37%；
Account for-the 1-15 of compound VI of the liquid-crystal composition gross weight 10%；And
Compound III -5 of the liquid-crystal composition gross weight 4% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -3 of the liquid-crystal composition gross weight 3%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 3%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -2-2 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -1-1 of the liquid-crystal composition gross weight 12%；
Account for the compounds Ⅳ -1-2 of the liquid-crystal composition gross weight 12%；
Account for the compounds Ⅳ -5-2 of the liquid-crystal composition gross weight 14%；
Account for the compounds Ⅳ -6-1 of the liquid-crystal composition gross weight 6%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 7-2 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 5-2 of compound V of the liquid-crystal composition gross weight 7%；
Account for-the 10-1 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 10-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 10-3 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 6%；And
Compound III -5 of the liquid-crystal composition gross weight 5% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 3%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 3%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 5%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -2-2 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-2 of the liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ -8-2 of the liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ -8-3 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -8-4 of the liquid-crystal composition gross weight 6%；
Account for-the 3-2 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 4-2 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 6-4 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 4-6 of compound VI of the liquid-crystal composition gross weight 2%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 25%；
Account for-the 1-15 of compound VI of the liquid-crystal composition gross weight 10%；And
Compound III -8 of the liquid-crystal composition gross weight 3% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 4%；
Account for the chemical compounds I -4 of the liquid-crystal composition gross weight 5%；
Account for the compound ii -1-2 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-1 of the liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ -9-2 of the liquid-crystal composition gross weight 5%；
Account for-the 5-1 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 5-2 of compound V of the liquid-crystal composition gross weight 5%；
Account for-the 10-1 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 10-2 of compound V of the liquid-crystal composition gross weight 10%；
Account for-the 10-3 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 12%；
Account for-the 7-2 of compound VI of the liquid-crystal composition gross weight 8%；And
Compound III -4 of the liquid-crystal composition gross weight 10% are accounted for,
Or the liquid-crystal composition includes：
Account for the chemical compounds I -1 of the liquid-crystal composition gross weight 4%；
Account for the chemical compounds I -2 of the liquid-crystal composition gross weight 4%；
Account for the compound ii -1-3 of the liquid-crystal composition gross weight 3%；
Account for the compound ii -1-4 of the liquid-crystal composition gross weight 6%；
Account for the compound ii -1-5 of the liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ -1-1 of the liquid-crystal composition gross weight 9%；
Account for the compounds Ⅳ -1-2 of the liquid-crystal composition gross weight 12%；
Account for the compounds Ⅳ -5-2 of the liquid-crystal composition gross weight 20%；
Account for-the 6-2 of compound V of the liquid-crystal composition gross weight 11%；
Account for-the 5-2 of compound V of the liquid-crystal composition gross weight 6%；
Account for-the 10-1 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 10-2 of compound V of the liquid-crystal composition gross weight 4%；
Account for-the 10-3 of compound V of the liquid-crystal composition gross weight 3%；
Account for-the 1-12 of compound VI of the liquid-crystal composition gross weight 3%；And
Account for the compound III -2 of the liquid-crystal composition gross weight 7%.
14. a kind of liquid crystal display device, the liquid crystal display device includes the liquid crystal described in any one of claim 1 to 13 Composition.
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CN106147786B (en) * 2015-04-23 2018-10-30 江苏和成显示科技有限公司 Liquid-crystal composition and its liquid crystal display device
CN107614661A (en) * 2015-06-12 2018-01-19 Dic株式会社 Composition and use its liquid crystal display cells
CN107955629B (en) * 2016-10-14 2021-03-05 石家庄诚志永华显示材料有限公司 Positive dielectric liquid crystal composition
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